Add description for S6437 for Go

rules/S6437/go/rule.adoc

@@ -1,44 +1,76 @@
-FIXME: add a description
-
-// If you want to factorize the description uncomment the following line and create the file.
-//include::../description.adoc[]
+include::../../../shared_content/secrets/description.adoc[]
 
 == Why is this an issue?
 
-FIXME: remove the unused optional headers (that are commented out)
+include::../../../shared_content/secrets/rationale.adoc[]
+
+=== What is the potential impact?
+
+include::../common/impact/rationale.adoc[]
+
+include::../../../shared_content/secrets/impact/financial_loss.adoc[]
 
-//=== What is the potential impact?
+include::../../../shared_content/secrets/impact/security_downgrade.adoc[]
 
 == How to fix it
-//== How to fix it in FRAMEWORK NAME
+
+include::../../../shared_content/secrets/fix/revoke.adoc[]
+
+include::../../../shared_content/secrets/fix/recent_use.adoc[]
+
+include::../../../shared_content/secrets/fix/vault.adoc[]
 
 === Code examples
 
+include::../common/fix/code-rationale.adoc[]
+
 ==== Noncompliant code example
 
 [source,go,diff-id=1,diff-type=noncompliant]
 ----
-FIXME
+import (
+    "net/url"
+)
+
+func main() {
+    url.UserPassword("user", "password") // Noncompliant
+}
 ----
 
 ==== Compliant solution
 
 [source,go,diff-id=1,diff-type=compliant]
 ----
-FIXME
+import (
+    "net/url"
+    "os"
+)
+
+func main() {
+    url.UserPassword(os.Getenv("USER"), os.Getenv("PASSWORD"))
+}
 ----
 
-//=== How does this work?
+include::../common/fix/how-it-works.adoc[]
+
+== Resources
+
+include::../common/resources/documentation.adoc[]
+
+include::../common/resources/standards.adoc[]
+
+ifdef::env-github,rspecator-view[]
+'''
+== Implementation Specification
+(visible only on this page)
+
+=== Message
 
-//=== Pitfalls
+Revoke and change this password, as it is compromised.
 
-//=== Going the extra mile
+=== Highlighting
 
+Highlight the credential use and its initialization.
 
-//== Resources
-//=== Documentation
-//=== Articles & blog posts
-//=== Conference presentations
-//=== Standards
-//=== External coding guidelines
-//=== Benchmarks
+'''
+endif::env-github,rspecator-view[]